Leases Maturities of Lease Liabilities (Details) $ in Thousands	Aug. 31, 2020 USD ($)
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 27,680
Lessee, Operating Lease, Liability, Payments, Due Year Two	52,780
Lessee, Operating Lease, Liability, Payments, Due Year Three	50,211
Lessee, Operating Lease, Liability, Payments, Due Year Four	49,339
Lessee, Operating Lease, Liability, Payments, Due Year Five	48,214
Lessee, Operating Lease, Liability, Payments, Due after Year Five	573,369
Lessee, Operating Lease, Liability, Payments, Due	801,593
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(334,864)
Operating Lease, Liability	466,729
Finance Lease, Liability, Payments, Remainder of Fiscal Year	7,627
Finance Lease, Liability, Payments, Due Year Two	16,151
Finance Lease, Liability, Payments, Due Year Three	16,401
Finance Lease, Liability, Payments, Due Year Four	19,123
Finance Lease, Liability, Payments, Due Year Five	15,415
Finance Lease, Liability, Payments, Due after Year Five	115,685
Finance Lease, Liability, Payment, Due	190,402
Finance Lease, Liability, Undiscounted Excess Amount	(92,204)
Finance Lease, Liability	98,198
Lessee Lease Not Yet Commenced Amount	$ 112,100